55001052991 has 2 divisors, whose sum is σ = 55001052992. Its totient is φ = 55001052990.

The previous prime is 55001052947. The next prime is 55001053061. The reversal of 55001052991 is 19925010055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55001052991 - 2⁷ = 55001052863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55001052991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55001052941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500526495 + 27500526496.

It is an arithmetic number, because the mean of its divisors is an integer number (27500526496).

Almost surely, 2^55001052991 is an apocalyptic number.

55001052991 is a deficient number, since it is larger than the sum of its proper divisors (1).

55001052991 is an equidigital number, since it uses as much as digits as its factorization.

55001052991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 37.

The spelling of 55001052991 in words is "fifty-five billion, one million, fifty-two thousand, nine hundred ninety-one".